Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | Amazfit - Helio Ring | Garmin - vivosmart 5 |
|---|---|---|
| Battery life | 5 days | 7 days |
| Sport modes | 0 | 14 |
| Water resistance | 10 ATM | 5 ATM |
Between the Helio Ring and vivosmart 5, the Helio Ring comes out ahead in water resistance, while the vivosmart 5 wins on battery life / sport modes. Overall, the Helio Ring scores 62 and the vivosmart 5 scores 63.9 on our Mars Score.
Which should you buy?
These two are nearly even on the Mars Score (62 vs 63.9). The decision is not about overall quality — both clear the bar — it is about which specific trade-offs fit your use.
Pick the Helio Ring if you care most about water resistance. The biggest gaps in its favor are water resistance. The single most decisive one: Water resistance — 5.00 ATM more. 10 vs 5.
Pick the vivosmart 5 if you care most about battery life / sport modes. Its strongest claims are battery life, sport modes. The single most decisive one: Battery life — 40.00% more. 7 days vs 5 days.
Both ship with comparable gps, spo2, so those specs do not separate the two — focus on the differences below.
Bottom line: there is no wrong answer here — match the spec advantages to how you actually use the product. The Mars Score parity says both are well-rounded; the differences are about trade-offs, not quality.
Which should you buy: Amazfit - Helio Ring or Garmin - vivosmart 5?
Garmin - vivosmart 5 leads the current Mars Score by 1.9 points.The more useful decision is the trade-off behind that result: compare battery life against the way you will actually use the product.
Choose Amazfit - Helio Ring if…
Amazfit - Helio Ring has the measurable edge on water resistance atm.
Choose Garmin - vivosmart 5 if…
Garmin - vivosmart 5 has the measurable edge on battery days, sport modes.
This is a structured comparison of the published catalog values. It is not a claim of identical real-world performance across every workload; use the linked spec drill-downs and methodology page to inspect the inputs.
Why Amazfit - Helio Ring wins
- ▲Water resistance — 5.00 ATM more. 10 vs 5.
Why Garmin - vivosmart 5 wins
- ▲Battery life — 40.00% more. 7 days vs 5 days.
- ▲Sport modes — 14.00 more. 14 vs 0.
Spec comparison
Fitness
| Spec | Amazfit - Helio Ring | Garmin - vivosmart 5 |
|---|---|---|
| GPS | false | false |
| Heart rate | true | true |
| SpO2 | true | true |
| Sleep tracking | true | true |
| Sport modes | 0 | 14lead |
Battery
| Spec | Amazfit - Helio Ring | Garmin - vivosmart 5 |
|---|---|---|
| Battery lifeⓘ | 5 days | 7 dayslead |
| Water resistanceⓘ | 10 ATMlead | 5 ATM |
Design
| Spec | Amazfit - Helio Ring | Garmin - vivosmart 5 |
|---|---|---|
| Display size | 0 " | 0.73 "lead |
| Weight | 3.5 glead | 26 g |